EP 0963626 A2 19991215 - Apparatus in a communication system
Title (en)
Apparatus in a communication system
Title (de)
Gerät in einem Kommunikationssystem
Title (fr)
Dispositif destiné à un système de communication
Publication
Application
Priority
- SE 9800034 W 19980113
- SE 9700169 A 19970121
Abstract (en)
[origin: WO9832235A2] The present invention relates to a receiver device comprising a receiver (104) adapted to receive radio signals in two frequency bands (FB1, FB2). The radio signals in one of the frequency bands (FB1) constitute communication signals for a radio system (AMPS, NMT) having a certain channel spacing, whereas the radio signals of the second frequency band (FB2) constitutes communication signals for a second radio system (PCS1900, DCS1800, GSM) having a second certain channel spacing. The receiver (104) comprises two inputs (108, 11) each intended for a radio system having different frequency bands and channel spacing. For radio signals occuring on one input (108), mixing is performed from the RF range directly to the baseband frequency range. For radio signals occuring on the second input (108) the mixing from the radio frequency range to the baseband frequency range is carried out through an intermediate frequency range. Further the receiver (104) comprises an output (112) intended to deliver baseband signals for both radio systems. The output (112) is connected to a baseband unit which is common to the radio systems. In the baseband unit, among other things, lowpass filtering, detection and neighbouring channel suppression are performed on the received radio signal that has been mixed down to the baseband frequency range.
IPC 1-7
IPC 8 full level
H04B 1/26 (2006.01); H03D 3/00 (2006.01); H04B 1/40 (2006.01)
CPC (source: EP KR US)
H03D 3/007 (2013.01 - EP US); H04B 1/005 (2013.01 - EP US); H04B 1/0057 (2013.01 - EP US); H04B 1/26 (2013.01 - KR); H04B 1/406 (2013.01 - EP US)
Citation (search report)
See references of WO 9832235A2
Designated contracting state (EPC)
BE DE ES FI FR GB IT
DOCDB simple family (publication)
WO 9832235 A2 19980723; WO 9832235 A3 19980911; AR 011555 A1 20000830; AU 5785598 A 19980807; AU 729765 B2 20010208; BR 9807287 A 20000321; CN 1115789 C 20030723; CN 1244316 A 20000209; CO 4771170 A1 19990430; DE 69833184 D1 20060406; DE 69833184 T2 20060720; EE 03502 B1 20010815; EE 9900323 A 20000215; EP 0963626 A2 19991215; EP 0963626 B1 20060111; HK 1025692 A1 20001117; JP 2001509994 A 20010724; JP 3934162 B2 20070620; KR 20000070294 A 20001125; MY 118134 A 20040930; SE 508290 C2 19980921; SE 9700169 D0 19970121; SE 9700169 L 19980722; TR 199901698 T2 19990921; US 6091963 A 20000718
DOCDB simple family (application)
SE 9800034 W 19980113; AR P980100267 A 19980121; AU 5785598 A 19980113; BR 9807287 A 19980113; CN 98801940 A 19980113; CO 98002537 A 19980121; DE 69833184 T 19980113; EE P9900323 A 19980113; EP 98901614 A 19980113; HK 00104727 A 20000727; JP 53421498 A 19980113; KR 19997006523 A 19990719; MY PI9800145 A 19980114; SE 9700169 A 19970121; TR 9901698 T 19980113; US 686798 A 19980114